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All Journal Jurnal Biologi Tropis Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer Jurnal Multidisiplin Indonesia
Firman Saputra
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Immunology & microbiology Law, Crime, Criminology & Criminal Justice

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Prevalence and Intensity of Ectoparasites on Mud Crab (Scylla serrata) in Teluk Pakedai District, Kubu Raya Regency Helfiani Helfiani; Firman Saputra; Diah Wulandari Rousdy
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5635

Abstract

Mud crabs (Scylla serrata Forskal, 1775) is a species of fishery commodity that can be attacked by pathogenic agents such as ectoparasites. Ectoparasites that infect mud crabs can trigger damage to the carapace and gills at a certain number of infections. This study aims to determine the prevalence and intensity of ectoparasites in mud crabs in Selat Remis Village, Teluk Pakedai District, Kubu Raya Regency. The study was conducted by taking random samples and determining the sample size based on the Lemeshow formula (95% confidence level), then to obtain prevalence and intensity it was carried out by examining the body organs (carapace, cheliped or (pereiopod I), pereiopods (walking legs), pereiopod V (swimming legs) and gills) of mud crabs (S. serrata) and identify the species of ectoparasites. Based on the results, the average prevalence of ectoparasites in mud crabs is 45,00% included in the commonly prevalence category. The prevalence value of each ectoparasites was Vorticella (17,50%), Zoothamnium (12,50%), Octolasmis cor (12,50%), Epistylis (15%), Octolasmis angulata (7,50%) and Acineta (2,50%). The highest intensity value of ectoparasites in mud crabs was O. angulata, 28 individuals per an infected mud crab.
Pengaruh Model Project Based Learning terhadap Hasil Belajar Siswa Mata Pelajaran Teknologi Pengelasan Logam di SMK Negeri 2 Painan Firman Saputra; Ambiyar Ambiyar
Mars : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 3 No. 3 (2025): Juni : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v3i3.825

Abstract

The subject of Metal Welding Technology is one of the compulsory subjects in the Fabrication major. However, many students' learning outcomes remain below the assessment criteria. This is suspected to be due to the use of conventional or less varied teaching methods, which result in limited student understanding and practical skills. Therefore, the researcher applied the Project-Based Learning (PjBL) model in this study, which aimed to determine its effect on students' comprehension. The type of research used was a quasi-experimental design with a post-test only control group, involving two classes: an experimental class and a control class. The study involved 16 students in each class. Data were collected through a test. Based on the data obtained, there was a difference between the experimental and control classes. This was proven by the average post-test scores of the experimental class, which was 80.62, compared to the control class, which was 65. These results indicate that the experimental class scored higher than the control class. The final data analysis included tests for normality, homogeneity, and hypothesis testing using a t-test. The results showed a significant (2-tailed) value of 0.001 for the comprehension group, which is less than 0.05. This means that the use of the Project-Based Learning model had a significant effect on students’ understanding and can be classified as effective, as it improved their comprehension.
Dynamics of Revitalization Program Towards Fair and Beneficial Renewal of Oil Palm Plantation in Indonesia Firman Saputra; Abdullah Sulaiman
Jurnal Multidisiplin Indonesia Vol. 3 No. 2 (2025): Juni : Jurnal Multidisiplin Indonesia
Publisher : PT. ALHAFI BERKAH INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62007/joumi.v3i2.469

Abstract

The oil palm plantation revitalization program in Indonesia is a response to the various structural, social, and environmental challenges faced by this sector. The dynamics of the program's implementation reflect the efforts of the government and stakeholders in creating a plantation system that is more equitable, sustainable, and beneficial to the community, especially smallholders. Through the policy of replanting smallholder oil palm (PSR), improving governance, and providing technical and financial support, revitalization is expected to increase productivity, improve the distribution of economic benefits, and reduce ecological impacts. However, various obstacles, such as overlapping regulations, gaps in access, and weak supervision are still real challenges in this renewal process. This paper explores these dynamics by highlighting the roles of key actors, implementation mechanisms, and potential solutions to achieve revitalization goals inclusively and equitably.
Co-Authors Abdullah Sulaiman Ambiyar, Ambiyar Diah Wulandari Rousdy Helfiani Helfiani